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Finding the Fourth Proportional to 100,757.93, 138,951.54 and 62,523.68

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Solution

The fourth proportional to 100,757.93, 138,951.54 and 62,523.68 is: 86,224.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,757.93 : 138,951.54 = 62,523.68 : x
  2. Step 2: Convert to fraction form
    100,757.93/138,951.54 = 62,523.68/x
  3. Step 3: Cross multiply
    100,757.93x = 138,951.54 × 62,523.68
  4. Step 4: Simplify right side
    100,757.93x = 8,687,760,927.71
  5. Step 5: Solve for x
    x = 8,687,760,927.71/100,757.93
  6. Step 6: Final answer
    x = 86,224.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.